1500W Zener TVS in a DO-201AE Axial Package
The 1.5KE12A-TP: Housed in the DO-201AE axial leaded package, it is a through-hole component suited for high-reliability power supply, industrial, and telecom board-level protection where a 1500W surge rating is needed without the thermal constraints of smaller surface-mount packages.
Clamping Voltage and Breakdown Threshold
The device has a minimum breakdown voltage of 11.4V, ensuring the TVS begins to conduct before the protected rail exceeds the 12V nominal by more than about 1.4V. The maximum clamping voltage of 16.7V at Ipp defines the worst-case voltage the downstream circuitry sees during a surge event — a figure that directly drives the voltage rating of the input capacitors and downstream regulators. With a unidirectional configuration (single channel), it is intended for DC rail protection where the signal or supply does not swing negative. The 1500W peak pulse rating is a 10/1000 µs waveform rating per the TVS standard; derating for shorter or longer pulse widths follows the square-wave equivalent energy curve in the datasheet.
Micro Commercial Co lists the 1.5KE12A-TP as an active product. The DO-201AE body is a standard axial-lead footprint, compatible with existing PCB layouts for the 1.5KE series.